Improved safety apparatus for gas-machines and carbureters



V J. F. BOYNTON. v Safety Apparatus for Gas Machines and Carburetors.No. 58,055; I Patented Sept. 18, 1866.

.v PETERS. Phflolkhngnphnr. Wilshlnglnn. D.C.

PATENT OFFICE.

JOHN F. BOYNTON, OF

SYRACUSE, NEW YORK.

IMPROVED SAFETY APPARATUS FOR GAS-MACHINES AND CARBURETERS.

Specification forming part of Letters Patent No. 58,055, dated September18, 1866.

To all whom it. may concern:

Be it known that I, JOHN F. BOYNTON, of

with atmospheric air and explosive gases, of

which the following is a specification.

It is well known that when hydrocarbon vapors are mixed with certainproportions of atmospheric air an explosive mixture isformed, from whichserious damages may result. In cases where hydrocarbon liquids are usedfor carburetin g gas or air explosive mixtures are liable to be formed,and the flame may pass. back through the gas pipe into the reservoir andproduce an explosion. It has long been known that the flame of burninggas may be extinguished by close contact with metal or other goodconductor of heat. It is on this principle that the miners or Davyssafetylamp is constructed. Safety oil-cans are also made on thisprinciple.

Now, my invention consists in interposing, in a gas-pipe, between theburner and the carbureter or oil-reservoir a safety device, orenlargement of the pipes, which will arrest the flame in passing up thepipe from the point of ignition. This device consists in dividing up thechannel in any'convenient manner, so as to extinguish the flame bybringing it in contact with alarge surface of 'cold metal or other goodconductor or absorbent of heat.

The following drawing will explain the device: A,the entering-pipe;B,the exit; O,tl1e lower convex surface; D, the upper convex surface; E,the one or more perforated plates of metal F, a section of circular diskseparating the plates; G G, the upper and lower diaphragms; H, the spaceoccupied by the fragments of metal, or their equivalents; I I, thc spacebetween plates.

' Instead of the arrangement above shown, an enlarged, cavity in thepipe filled with shot, metal filings, nails, scraps ofmetal, sand, 800.,will extinguish flame by suddenly absorbing heat from it.

cut is stated in the following claim, to wit:

A safety device composed of a body of cooling material, as metal orother good conductor of heat, interposed between the burner andcarbnreter, and so arranged as to present an extensive surface or seriesof surfaces to the carbureted air on its passage to the burner, therebykeeping it at a temperature below the point of ignition.

JOHN F. BOYNTON.

Witnesses:

J. J. CooMBs, O. S. BAKER.

That which I wish to secure by Letters Pat-

